John's weekly salary is $478.25 his employer is changing the pay period to semimonthly. a.) what is john's annual salary? b.) what will john's semi monthly salary be to the nearest cent?

Question A:

One year = 52 weeks
Salary one year = 52 × 478.25 = $24869

Question B:

Semi monthly means John is being paid twice a month instead of weekly
The average weeks in a month is 4 weeks. 
John is being paid every two weeks
The amount John will receive is 478.25 × 2 = $956.5

She made 100 grams of 0.818 or 81.8% sugar syrup